Re: [PATCH v3 24/37] x86: Introduce userspace API for CET enabling

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Subject: Re: [PATCH v3 24/37] x86: Introduce userspace API for CET enabling
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Tue, 15 Nov 2022 15:25:47 +0100
Cc: x86@xxxxxxxxxx, "H . Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-api@xxxxxxxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Balbir Singh <bsingharora@xxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Cyrill Gorcunov <gorcunov@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Eugene Syromiatnikov <esyr@xxxxxxxxxx>, Florian Weimer <fweimer@xxxxxxxxxx>, "H . J . Lu" <hjl.tools@xxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Mike Kravetz <mike.kravetz@xxxxxxxxxx>, Nadav Amit <nadav.amit@xxxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, Randy Dunlap <rdunlap@xxxxxxxxxxxxx>, "Ravi V . Shankar" <ravi.v.shankar@xxxxxxxxx>, Weijiang Yang <weijiang.yang@xxxxxxxxx>, "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, John Allen <john.allen@xxxxxxx>, kcc@xxxxxxxxxx, eranian@xxxxxxxxxx, rppt@xxxxxxxxxx, jamorris@xxxxxxxxxxxxxxxxxxx, dethoma@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx
In-reply-to: <20221104223604.29615-25-rick.p.edgecombe@intel.com>
References: <20221104223604.29615-1-rick.p.edgecombe@intel.com> <20221104223604.29615-25-rick.p.edgecombe@intel.com>

On Fri, Nov 04, 2022 at 03:35:51PM -0700, Rick Edgecombe wrote:

>  arch/x86/include/asm/cet.h        | 21 +++++++++++++++
>  arch/x86/kernel/shstk.c           | 44 +++++++++++++++++++++++++++++++

You see what's going wrong there? Eradicate the CET...

Follow-Ups:
- Re: [PATCH v3 24/37] x86: Introduce userspace API for CET enabling
  - From: Edgecombe, Rick P

References:
- [PATCH v3 00/37] Shadow stacks for userspace
  - From: Rick Edgecombe
- [PATCH v3 24/37] x86: Introduce userspace API for CET enabling
  - From: Rick Edgecombe

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